Classes [d2v2.0]

	Name,	Stereotype,	originalCode,	definition,
	AbnormalTraffic		LOS	A traffic condition which is not normal.
	Accident		ACC	Accidents are events where one or more vehicles are involved in collisions or in leaving the roadway. These include collisions between vehicles or with other road users or obstacles.
	Activity		ACT	Deliberate human action external to the traffic stream or roadway which could disrupt traffic.
	AffectedCarriagewayAndLanes		- null -	Supplementary positional information which details carriageway and lane locations. Several instances may exist where the element being described extends over more than one carriageway.
	AlertCArea		- null -	An area defined by reference to a predefined ALERT-C location table.
	AlertCDirection		- null -	The direction of traffic flow along the road to which the information relates.
	AlertCLinear		- null -	A linear section along a road defined between two points on the road by reference to a pre-defined ALERT-C location table.
	AlertCLinearByCode		- null -	A linear section along a road defined by reference to a linear section in a pre-defined ALERT-C location table.
	AlertCLocation		- null -	Identification of a specific point, linear or area location in an ALERT-C location table.
	AlertCLocationCode	datatype	- null -	A positive integer number (between 1 and 63,487) which uniquely identifies a pre-defined Alert C location defined within an Alert-C table.
	AlertCMethod2Linear		- null -	A linear section along a road between two points, Primary and Secondary, which are pre-defined in an ALERT-C location table. Direction is FROM the Secondary point TO the Primary point, i.e. the Primary point is downstream of the Secondary point.
	AlertCMethod2Point		- null -	A single point on the road network defined by reference to a point in a pre-defined ALERT-C location table and which has an associated direction of traffic flow.
	AlertCMethod2PrimaryPointLocation		- null -	The point (called Primary point) which is either a single point or at the downstream end of a linear road section. The point is specified by a reference to a point in a pre-defined ALERT-C location table.
	AlertCMethod2SecondaryPointLocation		- null -	The point (called Secondary point) which is at the upstream end of a linear road section. The point is specified by a reference to a point in a pre-defined ALERT-C location table.
	AlertCMethod4Linear		- null -	A linear section along a road between two points, Primary and Secondary, which are pre-defined ALERT-C locations plus offset distance. Direction is FROM the Secondary point TO the Primary point, i.e. the Primary point is downstream of the Secondary point.
	AlertCMethod4Point		- null -	A single point on the road network defined by reference to a point in a pre-defined ALERT-C location table plus an offset distance and which has an associated direction of traffic flow.
	AlertCMethod4PrimaryPointLocation		- null -	The point (called Primary point) which is either a single point or at the downstream end of a linear road section. The point is specified by a reference to a point in a pre-defined ALERT-C location table plus a non-negative offset distance.
	AlertCMethod4SecondaryPointLocation		- null -	The point (called Secondary point) which is at the upstream end of a linear road section. The point is specified by a reference to a point in a pre-defined Alert-C location table plus a non-negative offset distance.
	AlertCPoint		- null -	A single point on the road network defined by reference to a pre-defined ALERT-C location table and which has an associated direction of traffic flow.
	AngleInDegrees	datatype	- null -	An integer number representing an angle in whole degrees between 0 and 359.
	AnimalPresenceObstruction		- null -	An obstruction on the road resulting from the presence of animals.
	ApplicationRateValue		- null -	A measured or calculated value of the application rate of a substance.
	Area		- null -	A geographic or geometric defined area which may be qualified by height information to provide additional geospatial discrimination (e.g. for snow in an area but only above a certain altitude).
	AreaDestination		- null -	The specification of the destination of a defined route or itinerary which is an area.
	AuthorityOperation		- null -	Authority initiated operation or activity that could disrupt traffic.
	AxleFlowValue		- null -	A measured or calculated value of the flow rate of vehicle axles.
	AxleSpacing		- null -	The spacing details between the axle sets of an individual vehicle numbered from the front to the back of the vehicle.
	AxlesPerHour	datatype	- null -	Vehicle axles per hour.
	AxleWeight		- null -	The weight details of a specific axle on the vehicle.
	BasicData		- null -	Generic data that is either measured or calculated (elaborated) at the same time or over the same time period.
	Boolean	datatype	- null -	Boolean has the value space required to support the mathematical concept of binary-valued logic: {true, false}.
	CarParks		PAR	Provides information on the status of one or more car parks.
	CatalogueReference		- null -	Identification of the supplier's data catalogue in a data exchange context.
	Cause		- null -	Contains details of the cause of a record within a situation
	Comment		SUR	A free text comment with an optional date/time stamp that can be used by the operator to convey un-coded observations/information.
	ConcentrationKilogramsPerCubicMetre	datatype	- null -	Concentration defined in kilograms per cubic metre (equivalent to grams per litre under standard conditions).
	ConcentrationMicrogramsPerCubicMetre	datatype	- null -	A measure of concentration defined in µg/m3 (micrograms/cubic metre).
	ConcentrationOfVehiclesValue		- null -	A measured or calculated value of the concentration of vehicles on a unit stretch of road in a given direction.
	ConcentrationVehiclesPerKilometre	datatype	- null -	A measure of traffic density defined in number of vehicles per kilometre of road.
	Conditions		- null -	Any conditions which have the potential to degrade normal driving conditions.
	ConstructionWorks		- null -	Roadworks involving the construction of new infrastructure.
	CubicMetres	datatype	- null -	A volumetric measure defined in cubic metres.
	D2LogicalModel		- null -	The DATEX II logical model comprising exchange, content payload and management sub-models.
	DataValue		- null -	A data value of something that can be measured or calculated. Any provided meta-data values specified in the attributes override any specified generic characteristics such as defined for a specific measurement in the MeasurementSiteTable.
	Date	datatype	- null -	A combination of year, month and day integer-valued properties plus an optional timezone property. It represents an interval of exactly one day, beginning on the first moment of the day in the timezone, i.e. '00:00:00' up to but not including '24:00:00'.
	DateTime	datatype	- null -	A combination of integer-valued year, month, day, hour, minute properties, a decimal-valued second property and a time zone property from which it is possible to determine the local time, the equivalent UTC time and the time zone offset from UTC.
	DateTimeValue		- null -	A measured or calculated value of an instance in time.
	DayWeekMonth		- null -	Specification of periods defined by the intersection of days, weeks and months.
	Delays		- null -	The details of the delays being caused by the situation element defined in the situation record. It is recommended to only use one of the optional attributes to avoid confusion.
	Destination		- null -	The specification of the destination of a defined route or itinerary. This may be either a location on a network or an area location.
	DirectionBearingValue		- null -	A measured or calculated value of direction as a bearing.
	DirectionCompassValue		- null -	A measured or calculated value of direction as a point of the compass.
	DistanceAlongLinearElement		LR_DistanceExpression	Distance of a point along a linear element either measured from the start node or a defined referent on that linear element, where the start node is relative to the element definition rather than the direction of traffic flow.
	DistanceFromLinearElementReferent		LR_DistanceExpression	Distance of a point along a linear element measured from a "from referent" on the linear element, in the sense relative to the linear element definition rather than the direction of traffic flow or optionally towards a "towards referent".
	DistanceFromLinearElementStart		LR_DistanceExpression	Distance of a point along a linear element measured from the start node of the linear element, where start node is relative to the element definition rather than the direction of traffic flow.
	DisturbanceActivity		- null -	Deliberate human action of either a public disorder nature or of a situation alert type which could disrupt traffic.
	DurationValue		- null -	A measured or calculated value of a period of time.
	ElaboratedData		- null -	An instance of data which is derived/computed from one or more measurements over a period of time. It may be a current value or a forecast value predicted from historical measurements.
	ElaboratedDataFault		- null -	Details of a fault which is being reported for the related elaborated data.
	ElaboratedDataPublication		- null -	A publication containing one or more elaborated data sets.
	EnvironmentalObstruction		- null -	An obstruction on the road resulting from an environmental cause.
	EquipmentOrSystemFault		- null -	Equipment or system which is faulty, malfunctioning or not in a fully operational state that may be of interest or concern to road operators and road users.
	Exchange		- null -	Details associated with the management of the exchange between the supplier and the client.
	ExternalReferencing		- null -	A location defined by reference to an external/other referencing system.
	Fault		- null -	Information about a fault relating to a specific piece of equipment or process.
	FilterExitManagement		- null -	Filter indicators management information.
	FilterReference		- null -	Details of a supplier's filter in a data exchange context.
	Float	datatype	- null -	A floating point number whose value space consists of the values m × 2^e, where m is an integer whose absolute value is less than 2^24, and e is an integer between -149 and 104, inclusive.
	FloatingPointMetreDistanceValue		- null -	A measured or calculated value of distance in metres in a floating point format.
	GeneralInstructionOrMessageToRoadUsers		SAD	General instruction and/or message that is issued by the network/road operator which is applicable to drivers and sometimes passengers.
	GeneralNetworkManagement		- null -	Network management action that is instigated either manually or automatically by the network/road operator. Compliance with any resulting control may be advisory or mandatory.
	GeneralObstruction		- null -	Any stationary or moving obstacle of a physical nature, other than of an animal, vehicle, environmental, or damaged equipment nature.
	GenericPublication		- null -	A publication used to make level B extensions at the publication level.
	GenericSituationRecord		- null -	A generic SituationRecord for use when adding level B extensions at the SituationRecord level.
	GrossWeightCharacteristic		- null -	Gross weight characteristic of a vehicle.
	GroupOfLocations		- null -	One or more physically separate locations. Multiple locations may be related, as in an itinerary (or route), or may be unrelated. It is not for identifying the same physical location using different referencing systems.
	GroupOfPeopleInvolved		- null -	Group of people involved in the event having common characteristics and/or status.
	GroupOfVehiclesInvolved		- null -	Group of the vehicles involved having common characteristics and/or status.
	HazardousMaterials		- null -	Details of hazardous materials.
	HeaderInformation		- null -	Management information relating to the data contained within a publication.
	HeaviestAxleWeightCharacteristic		- null -	Weight characteristic of the heaviest axle on the vehicle.
	HeightCharacteristic		- null -	Height characteristic of a vehicle.
	Humidity		- null -	Details of atmospheric humidity.
	HumidityInformation		- null -	Measurements of atmospheric humidity.
	Impact		- null -	An assessment of the impact that an event or operator action defined by the situation record has on the driving conditions.
	IndividualVehicleDataValues		- null -	Measured or calculated data values relating to individual vehicles derived from detectors at the specified measurement site.
	InfrastructureDamageObstruction		- null -	An obstruction on the road resulting from the failure or damage of infrastructure on, under, above or close to the road.
	Integer	datatype	- null -	An integer number whose value space is the set {-2147483648, -2147483647, -2147483646, ..., -2, -1, 0, 1, 2, ..., 2147483645, 2147483646, 2147483647}.
	IntegerMetreDistanceValue		- null -	A measured or calculated value of distance in whole metres.
	IntensityKilogramsPerSquareMetre	datatype	- null -	A measure of the quantity of application of a substance to an area defined in kilograms per square metre.
	IntensityMillimetresPerHour	datatype	- null -	A measure of precipitation intensity defined in millimetres per hour.
	InternationalIdentifier		- null -	An identifier/name whose range is specific to the particular country.
	Itinerary		- null -	Multiple (i.e. more than one) physically separate locations arranged as an ordered set that defines an itinerary or route.
	ItineraryByIndexedLocations		- null -	Multiple physically separate locations arranged as an ordered set that defines an itinerary or route. The index qualifier indicates the order.
	ItineraryByReference		- null -	Multiple (i.e. more than one) physically separate locations which are ordered that constitute an itinerary or route where they are defined by reference to a predefined itinerary.
	KilogramsConcentrationValue		- null -	A measured or calculated value of concentration of a substance in grams per unit volume.
	Kilohertz	datatype	- null -	A measure of frequency defined in kiloherz.
	KilometresPerHour	datatype	- null -	A measure of speed defined in kilometres per hour.
	Language	datatype	- null -	A language datatype, identifies a specified language.
	LengthCharacteristic		- null -	Length characteristic of a vehicle.
	LifeCycleManagement		- null -	Information relating to the life cycle management of the situation record.
	Linear		- null -	A linear section along a single road with optional directionality defined between two points on the same road.
	LinearElement		- null -	A linear element along a single linear object, consistent with ISO 19148 definitions.
	LinearElementByCode		- null -	A linear element along a single linear object defined by its identifier or code in a road network reference model (specified in LinearElement class) which segments the road network according to specific business rules.
	LinearElementByPoints		- null -	A linear element along a single linear object defined by its start and end points.
	LinearTrafficView	identifiable	- null -	An identifiable instance of a linear traffic view at a single point in time relating to a linear section of road, comprising one or more traffic view records.
	LinearWithinLinearElement		LR_PositionExpresssion	A linear section along a linear element where the linear element is either a part of or the whole of a linear object (i.e. a road), consistent with ISO 19148 definitions.
	Location		- null -	The specification of a location either on a network (as a point or a linear location) or as an area. This may be provided in one or more referencing systems.
	LocationByReference		- null -	A location defined by reference to a predefined location.
	LocationCharacteristicsOverride		- null -	Location characteristics which override values set in the referenced measurement point.
	MaintenanceVehicles		- null -	Details of the maintenance vehicles involved in the roadworks activity.
	MaintenanceWorks		- null -	Roadworks involving the maintenance or installation of infrastructure.
	ManagedCause		- null -	A cause of this situation record which is managed by the publication creator, i.e. one which is represented by another situation record produced by the same publication creator.
	Management		- null -	Information relating to the management of the situation record.
	MeasuredDataPublication		- null -	A publication containing one or more measurement data sets, each set being measured at a single measurement site.
	MeasuredValue		- null -	Contains optional characteristics for the specific measured value (indexed to correspond with the defined characteristics of the measurement at the referenced measurement site) which override the static characteristics defined in the MeasurementSiteTable.
	MeasurementEquipmentFault		- null -	Details of a fault which is being reported for the related measurement equipment.
	MeasurementSiteRecord	versionedIdentifiable	- null -	An identifiable single measurement site entry/record in the Measurement Site table.
	MeasurementSiteTable	versionedIdentifiable	- null -	A Measurement Site Table comprising a number of sets of data, each describing the location from where a stream of measured data may be derived. Each location is known as a "measurement site" which can be a point, a linear road section or an area.
	MeasurementSiteTablePublication		- null -	A publication containing one or more Measurment Site Tables.
	MeasurementSpecificCharacteristics		- null -	Characteristics which are specific to an individual measurement type (specified in a known order) at the given measurement site.
	MetresAsFloat	datatype	- null -	A measure of distance defined in metres in a floating point format.
	MetresAsNonNegativeInteger	datatype	- null -	A measure of distance defined in metres in a non negative integer format.
	MetresPerSecond	datatype	- null -	A measure of speed defined in metres per second.
	MicrogramsConcentrationValue		- null -	A measured or calculated value of concentration of a substance in micrograms per unit volume.
	Mobility		- null -	An indication of whether the associated instance of a SituationRecord is mobile (e.g. a march or parade moving along a road) or stationary.
	MultilingualString	datatype	- null -	A multilingual string, whereby the same text may be expressed in more than one language.
	NetworkLocation		- null -	The specification of a location on a network (as a point or a linear location).
	NetworkManagement		- null -	Network management action which is applicable to the road network and its users.
	NonManagedCause		- null -	A cause of this situation record which is not managed by the publication creator, i.e. one which is not represented by another situation record produced by the same publication creator.
	NonNegativeInteger	datatype	- null -	An integer number whose value space is the set {0, 1, 2, ..., 2147483645, 2147483646, 2147483647}.
	NonOrderedLocationGroupByList		- null -	A group of (i.e. more than one) physically separate locations which have no specific order and where each location is explicitly listed.
	NonOrderedLocationGroupByReference		- null -	A group of (i.e. more than one) physically separate locations which have no specific order that are defined by reference to a predefined non ordered location group.
	NonOrderedLocations		- null -	Multiple (i.e. more than one) physically separate locations which have no specific order.
	NonRoadEventInformation		- null -	Information about an event which is not on the road, but which may influence the behaviour of drivers and hence the characteristics of the traffic flow.
	NonWeatherRelatedRoadConditions		- null -	Road surface conditions that are not related to the weather but which may affect driving conditions.
	NumberOfAxlesCharacteristic		- null -	Number of axles characteristic of a vehicle.
	Obstruction		OHZ & MHZ	Any stationary or moving obstacle of a physical nature (e.g. obstacles or vehicles from an earlier accident, shed loads on carriageway, rock fall, abnormal or dangerous loads, or animals etc.) which could disrupt or endanger traffic.
	OffsetDistance		- null -	The non negative offset distance from the ALERT-C referenced point to the actual point.
	OperatorAction		OPA	Actions that a traffic operator can decide to implement to prevent or help correct dangerous or poor driving conditions, including maintenance of the road infrastructure.
	OverallPeriod		- null -	A continuous or discontinuous period of validity defined by overall bounding start and end times and the possible intersection of valid periods (potentially recurring) with the complement of exception periods (also potentially recurring).
	PartsPerMillionConcentration	datatype	- null -	Concentration defined in parts per million.
	PassengerCarUnitsPerHour	datatype	- null -	Passenger car units per hour.
	PayloadPublication		- null -	A payload publication of traffic related information or associated management information created at a specific point in time that can be exchanged via a DATEX II interface.
	PcuFlowValue		- null -	A measured or calculated value of the flow rate of passenger car units.
	Percentage	datatype	- null -	A measure of percentage.
	PercentageDistanceAlongLinearElement		LR_DistanceExpression	Distance of a point along a linear element measured from the start node expressed as a percentage of the whole length of the linear element, where start node is relative to the element definition rather than the direction of traffic flow.
	PercentageValue		- null -	A measured or calculated value expressed as a percentage.
	Period		- null -	A continuous time period or a set of discontinuous time periods defined by the intersection of a set of criteria all within an overall delimiting interval.
	PictogramDisplayAreaSettings		- null -	Settings specific to a distinct pictogram display area on the VMS (where pictogramIndex indicates which pictogram area it relates to if there is more than one pictogram display area on the VMS).
	Point		- null -	A single geospatial point.
	PointAlongLinearElement		LR_PositionExpression	A point on a linear element where the linear element is either a part of or the whole of a linear object (i.e. a road), consistent with ISO 19148 definitions.
	PointByCoordinates		- null -	A single point defined only by a coordinate set with an optional bearing direction.
	PointCoordinates		- null -	A pair of coordinates defining the geodetic position of a single point using the European Terrestrial Reference System 1989 (ETRS89).
	PointDestination		- null -	The specification of the destination of a defined route or itinerary which is a point.
	Pollution		- null -	Details of atmospheric pollution.
	PollutionInformation		- null -	Measurements of atmospheric pollution.
	PoorEnvironmentConditions		EXH & FOS & PRE & WDA & WIN	Any environmental conditions which may be affecting the driving conditions on the road.
	PrecipitationDetail		- null -	Details of precipitation (rain, snow etc.).
	PrecipitationInformation		- null -	Measurements of precipitation.
	PrecipitationIntensityValue		- null -	A measured or calculated value of the accumulation rate of precipitation.
	PredefinedItinerary	versionedIdentifiable	- null -	An identifiable versioned instance of a predefined itinerary.
	PredefinedLocation	versionedIdentifiable	- null -	An identifiable versioned instance of a single predefined location.
	PredefinedLocationContainer		- null -	A container which may comprise the definition of a predefined itinerary, non ordered group of locations or single location.
	PredefinedLocationsPublication		- null -	A publication containing one or more groups of predefined locations organised either as litineraries, non ordered groups or as individual locations.
	PredefinedNonOrderedLocationGroup	versionedIdentifiable	- null -	An identifiable versioned instance of a predefined group of non ordered locations (i.e. more than one).
	PublicEvent		- null -	Organised public event which could disrupt traffic.
	PullService		- null -	Self-explanatory
	PushService		- null -	Self-explanatory
	Reference	datatype	- null -	A reference to an identifiable managed object where the identifier is unique. It comprises an identifier (e.g. GUID) and a string identifying the class of the referenced object.
	ReferenceSettings		- null -	Specification of the default value for traffic status on a group of predefined locations on the road network. Only when traffic status differs from this value at a location in the group need a value be sent.
	Referent		LR_Referent	A referent on a linear object that has a known location such as a node, a reference marker (e.g. a markerpost), an intersection etc.
	ReroutingManagement		- null -	Rerouting management action that is issued by the network/road operator.
	RoadConditions		- null -	Conditions of the road surface which may affect driving conditions. These may be related to the weather (e.g. ice, snow etc.) or to other conditions (e.g. oil, mud, leaves etc. on the road)
	RoadOperatorServiceDisruption		- null -	Details of disruption to normal road operator services
	RoadOrCarriagewayOrLaneManagement		- null -	Road, carriageway or lane management action that is instigated by the network/road operator.
	RoadsideAssistance		- null -	Details of road side assistance required or being given.
	RoadsideServiceDisruption		- null -	Details of disruption to normal roadside services (e.g. specific services at a service area).
	RoadSurfaceConditionInformation		- null -	Measurements of road surface conditions which are related to the weather.
	RoadSurfaceConditionMeasurements		- null -	Measurements of the road surface condition which relate specifically to the weather.
	Roadworks		RMT	Highway maintenance, installation and construction activities that may potentially affect traffic operations.
	Seconds	datatype	- null -	Seconds.
	ServiceBase		- null -	The common base exchange service from which the real exchange services are derived.
	SignSetting		- null -	Provides information on message signs and the information currently displayed.
	SiteMeasurements		- null -	A measurement data set derived from a specific measurement site.
	Situation	versionedIdentifiable	TTS	An identifiable instance of a traffic/travel situation comprising one or more traffic/travel circumstances which are linked by one or more causal relationships. Each traffic/travel circumstance is represented by a Situation Record.
	SituationPublication		TME	A publication containing zero or more traffic/travel situations.
	SituationRecord	versionedIdentifiable	SEL	An identifiable versioned instance of a single record/element within a situation.
	Source		- null -	Details of the source from which the information was obtained.
	SpeedManagement		- null -	Speed management action that is instigated by the network/road operator.
	SpeedPercentile		- null -	Details of percentage (from an observation set) of vehicles whose speeds fall below a stated value.
	SpeedValue		- null -	A measured or calculated value of speed.
	String	datatype	- null -	A character string whose value space is the set of finite-length sequences of characters. Every character has a corresponding Universal Character Set code point (as defined in ISO/IEC 10646), which is an integer.
	Subjects		- null -	The subjects with which the roadworks are associated.
	Subscription		- null -	This item contains all information relating to a customer subscription.
	SubscriptionService		- null -	Self-explanatory
	SupplementaryPositionalDescription		- null -	A collection of supplementary positional information which improves the precision of the location.
	Target		- null -	The details of a DATEX II target client.
	Temperature		- null -	Details of atmospheric temperature.
	TemperatureCelsius	datatype	- null -	A measure of temperature defined in degrees Celsius.
	TemperatureInformation		- null -	Measurements of atmospheric temperature.
	TemperatureValue		- null -	A measured or calculated value of temperature.
	TextDisplayAreaSettings		- null -	Settings specific to a distinct text display area on the VMS.
	Time	datatype	- null -	An instant of time that recurs every day. The value space of time is the space of time of day values as defined in § 5.3 of [ISO 8601]. Specifically, it is a set of zero-duration daily time instances.
	TimePeriodByHour		- null -	Specification of a continuous period within a 24 hour period by times.
	TimePeriodOfDay		- null -	Specification of a continuous period of time within a 24 hour period.
	Tonnes	datatype	- null -	A measure of weight defined in metric tonnes.
	TpegAreaDescriptor		- null -	A descriptor for describing an area location.
	TpegAreaLocation		- null -	A geographic or geometric area defined by a TPEG-Loc structure which may include height information for additional geospatial discrimination.
	TpegDescriptor		- null -	A collection of information providing descriptive references to locations using the TPEG-Loc location referencing approach.
	TpegFramedPoint		- null -	A point on the road network which is framed between two other points on the same road.
	TpegGeometricArea		- null -	A geometric area defined by a centre point and a radius.
	TpegHeight		- null -	Height information which provides additional discrimination for the applicable area.
	TpegIlcPointDescriptor		- null -	A descriptor for describing a junction by defining the intersecting roads.
	TpegJunction		- null -	A point on the road network which is a road junction point.
	TpegJunctionPointDescriptor		- null -	A descriptor for describing a point at a junction on a road network.
	TpegLinearLocation		- null -	A linear section along a single road defined between two points on the same road by a TPEG-Loc structure.
	TpegNamedOnlyArea		- null -	An area defined by a well-known name.
	TpegNonJunctionPoint		- null -	A point on the road network which is not a road junction point.
	TpegOtherPointDescriptor		- null -	General descriptor for describing a point.
	TpegPoint		- null -	A point on the road network which is either a junction point or a non junction point.
	TpegPointDescriptor		- null -	A descriptor for describing a point location.
	TpegPointLocation		- null -	A single point on the road network defined by a TPEG-Loc structure and which has an associated direction of traffic flow.
	TpegSimplePoint		- null -	A point on the road network which is not bounded by any other points on the road network.
	TrafficConcentration		- null -	Averaged measurements or calculations of traffic concentration.
	TrafficData		- null -	Measured or derived values relating to traffic or individual vehicle movements on a specific section or at a specific point on the road network.
	TrafficElement		- null -	An event which is not planned by the traffic operator, which is affecting, or has the potential to affect traffic flow.
	TrafficFlow		- null -	Averaged measurements or calculations of traffic flow rates.
	TrafficHeadway		- null -	Averaged measurements or calculations of traffic headway, i.e. the distance or time interval between vehicles.
	TrafficSpeed		- null -	Averaged measurements or calculations of traffic speed.
	TrafficStatus		- null -	The status of traffic conditions on a specific section or at a specific point on the road network.
	TrafficStatusValue		- null -	A measured or calculated value of the status of traffic conditions on a section of road in a specified direction.
	TrafficView	identifiable	- null -	An identifiable instance of a traffic view at a single point in time relating to a predefined location set, comprising one or more linear traffic views each of which comprise one or more traffic view records.
	TrafficViewPublication		- null -	A publication containing one or more traffic views.
	TrafficViewRecord	identifiable	- null -	An identifiable instance of a single record within a traffic view which shall comprise at most one instance of each of the following: OperatorAction, TrafficElement, ElaboratedData and CCTVImages.
	TransitInformation		FER	The availability of transit services and information relating to their departures. This is limited to those transit services which are of direct relevance to road users, e.g. connecting rail or ferry services.
	TravelTimeData		- null -	Derived/computed travel time information relating to a linear section of the road network.
	Url	datatype	- null -	A Uniform Resource Locator (URL) address comprising a compact string of characters for a resource available on the Internet.
	UrlLink		- null -	Details of a Uniform Resource Locator (URL) address pointing to a resource available on the Internet from where further relevant information may be obtained.
	Validity		- null -	Specification of validity, either explicitly or by a validity time period specification which may be discontinuous.
	Vehicle		- null -	Details of an individual vehicle.
	VehicleCharacteristics		- null -	The characteristics of a vehicle, e.g. lorry of gross weight greater than 30 tonnes.
	VehicleFlowValue		- null -	A measured or calculated value of the flow rate of vehicles.
	VehicleObstruction		- null -	An obstruction on the road caused by one or more vehicles.
	VehiclesPerHour	datatype	- null -	Vehicles per hour.
	VersionedReference	datatype	- null -	A reference to an identifiable version managed object where the combination of the identifier and version is unique. It comprises an identifier (e.g. GUID), a version (NonNegativeInteger) and a string identifying the class of the referenced object.
	Visibility		- null -	Details of atmospheric visibility.
	VisibilityInformation		- null -	Measurements of atmospheric visibility.
	Vms		- null -	Provides the current status and settings of the VMS and the currently displayed information. Where a VMS is displaying a sequence or alternating set of messages these are ordered according to the messageIndex qualifier.
	VmsDynamicCharacteristics		- null -	Provides the current characteristic settings for the VMS which can be dynamically configured and therefore which override any corresponding characteristics set for the VMS in the relevant VmsUnitPublication.
	VmsFault		- null -	Details of the fault which is being reported for the specified variable message sign panel.
	VmsManagedLogicalLocation		- null -	The logical location (e.g. a car park, a section of road, a junction etc.) which a VMS contributes to the management of.
	VmsMessage		- null -	A message displayed on a VMS which may comprise one or more sequentially displayed text pages and/or pictograms with supplementary details. When in a sequence of displayed messages sequencing of text pages and pictograms within a message are prohibited.
	VmsPictogram		- null -	A main pictogram displayable on the VMS panel. Note a main pictogram may have an associated supplementary panel which may itself contain a further pictogram and line of text.
	VmsPictogramDisplayArea		- null -	An area on a VMS used for the display of pictograms and associated supplemental information or instructions.
	VmsPictogramDisplayCharacteristics		- null -	Characteristics specific to the pictogram display area(s) on the VMS where pictogramDisplayAreaIndex indicates which pictogram area it relates to.
	VmsPublication		- null -	A publication containing the current status and settings of one or more VMS units, each unit controlling one or more individual variable message signs.
	VmsRecord		- null -	A sub-record in the VMS Unit table defining the characteristics of a single variable message sign that is controlled by a specific VMS unit. Locations are on or adjacent to the road network but may be updated over time if relating to a mobile VMS unit.
	VmsSetting		- null -	Provides information on variable message signs and the information currently displayed.
	VmsSupplementaryPanel		- null -	A panel which may display information or a regulatory instruction which is supplemental to the associated pictogram, comprising either an additional line of text or a pictogram or both.
	VmsSupplementaryPanelCharacteristics		- null -	Characteristics of a panel which may display details (sometimes regulatory in nature) that are supplemental to the main pictogram, comprising an additional line of text and/or a pictogram.
	VmsSupplementaryPictogram		- null -	An additional pictogram that is displayed in the panel which is supplemental to the associated pictogram display.
	VmsTablePublication		- null -	A publication containing one or more VMS Unit Tables each comprising a set of records which hold details of VMS units.
	VmsText		- null -	A page of text (comprising one or more ordered lines) that are displayed simultaneously on the VMS. Where more than one page is defined these are sequentially displayed according to their "pageNumber".
	VmsTextDisplayCharacteristics		- null -	Characteristics specific to the textual display area on the VMS.
	VmsTextLine		- null -	A single line of text on a text display area or supplementary panel.
	VmsUnit		- null -	Status of a VMS unit which may control one or more variable message signs on a single gantry or on different gantries.
	VmsUnitFault		- null -	Details of the fault which is being reported for the specified variable message sign control unit.
	VmsUnitRecord	versionedIdentifiable	- null -	A versioned single VMS unit entry/record in the VMS Unit table that defines the characteristics of the VMS unit.
	VmsUnitTable	versionedIdentifiable	- null -	A versioned VMS Unit Table comprising a number of data records, each record defining the characteristics of a specific deployed variable message sign unit.
	WattsPerSquareMetre	datatype	- null -	A measure of radiant energy defined in watts per square metre.
	WeatherData		- null -	Measured or derived values relating to the weather at a specific location or locations.
	WeatherRelatedRoadConditions		SHZ & SNO	Road surface conditions that are related to the weather which may affect the driving conditions, such as ice, snow or water.
	WidthCharacteristic		- null -	Width characteristic of a vehicle.
	Wind		- null -	Wind conditions on the road.
	WindInformation		- null -	Measurements of wind conditions.
	WinterDrivingManagement		- null -	Winter driving management action that is instigated by the network/road operator.
	Years	datatype	- null -	Years.